Gemini* and Gopher

• Personal/Opinions

  • 🖼️ xkcd: Dinosaurs And Non-Dinosaurs #3204

• Technology and Free Software

  • Diode Function Generators, Revisited

    I think my understanding of diode function generators was a bit fuzzy at the time I wrote that, as well as during my preliminary attempts to implement my own diode function generator, which didn't go well. Today I studied again the relevant pages in Hyndman's "Analog and Hybrid Computing" (1970), pages 28-35, and now I have a clearer understanding of how they work, and what is happening in the schematics. So I am hoping to take another stab at building one. Some obstacles at the moment are that I might not have enough three position switches and DPDT switches to implement a reasonable number of diode sections, as described in Figure 2.19 Variable function generator circuit. These switches allow you to do some important things for flexibility, specifically (1) ground out any diode section you aren't using and (2) configure a diode to work in any particular quadrant that you would like. Not that switches are ridiculously expensive, but the budget continues to be tight. And when I do get a few dollars to spare, it is a hard choice between spending it on yet another electronics parts order, vs. my long term savings goals. I am hoping to save up enough money for a new telescope mount, for my astronomical studies, which I'm thinking will likely cost around 200 to 300 USD.

  • Hyperjump: cthulhu28.space

    All my stuff has been successfully moved to the new-old domain: [...]

  • AI is the Cloud final stage

    Now the situation is getting even worst, AI allows opportunists to get super power and doing what they would never be able to do before; now we have illiterate able to write in a "baroquesque" manner and inartistic people capable to create illustrations and video reels. The limit is only the lack of shameful that usually is mostly nonexistent on the opportunists.